U call it keep change change. keep 15.7. change it to subtract and change -3.45 to just 3.45 (positive not negative)
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1.) v=(l)(w)(h)
V=(9)(9)(9)
V=(81)(9)
V=729in^3
2.) (I forget if this is the real equation to this but this would give you the same answer)
V=(l)(w)(h)
————
2
V=(8)(6)(12)
————-
2
V=576/2
V=288cm^3
I believe the answer is c